Sidemount Diver Specialty may count towards your Advanced Open Water Diver certification. Ask your instructor for details.
Initial pool sessions were hard. I felt like an openwater diver again, strapped in to the twin tanks trying to conduct valve drills. However, as we moved through the Tec 40 to 45 and 50 courses, our skills improved and we were able to enjoy the course. The most satisfying part of Tec diving is taking your skills, buoyancy, knowledge and awareness to the next stage. It is quite exciting to be able to manage life-threatening emergencies at deep water without having to climb to the surface (due decompression requirements). It's gratifying to execute your dive plan in military precision.
The next day it was on to technical sidemount, which means adding our deco 50-percent oxygen and 100-percent oxygen tanks on either side. This increases your profile underwater so you must keep the tanks as trim as possible against your body. You have a couple of clips on each side of your waist. As you breathe down your tanks and they become positively buoyant, you adjust your tank position to the second clip position. The aim here is to be as streamlined as possible. Every few minutes you also switch your breathing from one tank to the other. That way the pressure in each tank runs down at roughly the same rate, and if there is a failure with either tank or regulator, you’ll still have gas to breathe. As with all new things, building up experience is key to comfort and enjoyment. I spent the next few days doing deco dives with the sidemount rig, buddied up with Evolution co-owner David Joyce — a hugely experienced Tec diver and Trimix instructor. On one dive we visited the Japanese Mogami wreck down at 164 feet, where I was beguiled by the bits of old gas masks, uniforms and even a few bones we saw.
Sidemount has many benefits, but it is particularly well-suited for cave diving. (It was cave divers who invent sidemount. These benefits include:
Dive sidemount has become a popular sport in open waters. While it looks more sleek than having a tank strapped to your back, it doesn't hurt your back.
You will need your standard wetsuit, fins and mask as well as a computer, compass and DSMB.
Are you interested in becoming a Sidemount diver. This post will explain everything you need to know about becoming a Sidemount diver.
If you will not be using sidemount during your cave diver training, what you should be looking at is our CDS Basics Orientation course.
To make dives beyond 130ft, decompression divers will add Helium to the cylinders. Then they can explore the realm of the uncommon. Their experiences at wrecks and reefs are often less frequent than those of astronauts who visit the moon.
Academics - A technical course's academic portion is very similar to other scuba classes. Students will be required to do self-study and share their new knowledge with their instructor. Although the dive planning requirements for technical courses are more complex than what most people are used to, they are essential in executing a successful dive. The gas management portion of the planning discussion for overhead and decompression diving will take more time than most divers are used. A computer program is used to calculate the gas volumes and reserve required for each dive.
Academics - Technical courses have similar academic requirements to other classes. Students will conduct some self-study and present their findings to their instructor. A technical course requires that you plan your dives in advance. This is a crucial step to ensure a safe and successful dive. The gas management discussion in overhead and deep diving is more complex than what most divers are used too. A computer program can be used to calculate gas volumes and reserves.
‘Caverns Measureless to Men’ by Sheck Exley, one of the pioneers of cave diving in Florida, USA. He also wore ‘Basic Cave Diving: A Blueprint for Survival’ which studies many cave diving accidents.
Rentals are available for items such as primary lights and cylinders that can be hard to transport. If you require any of these items, please let us know.
If you are not ready to dive locally, but wish to support your local dive center, you can complete eLearning courses and coursework close to home. You can then travel to complete your training dives. Ask your local PADI Dive Center for a referral.
According to experts, approximately 40% of technical divers enroll in additional education and training programs. This yields a reasonable estimate of approximately 160,000 active technical divers worldwide.
Technical diving (also known as tec diving or tech diving) is non-professional scuba diving that exceeds the agency-specified limits of recreational diving.
- Increased Bottom Time A Closed Circuit diver is not concerned with running out of gas because they are only limited by decompression. This can also be reduced by selecting an oxygen partial pressure that provides the diver with virtually limitless bottom times in 60 feet or less of water.